Putting VoIP to work :
Bill Douskalis.
Putting VoIP to work : Softswitch network design and testing / Bill Douskalis. - N.J : Prentice Hall, 2002. - xvii, 327 p.
Includes bibliographical references and index.
130409596
Internet telephony--Computer networks--Switching theory.
621.38212 D741
Putting VoIP to work : Softswitch network design and testing / Bill Douskalis. - N.J : Prentice Hall, 2002. - xvii, 327 p.
Includes bibliographical references and index.
130409596
Internet telephony--Computer networks--Switching theory.
621.38212 D741